Mekran beds (Gwadar Stage) - Sangal (Pliocene of Pakistan)

Where: Pakistan (25.5° N, 65.7° E: paleocoordinates 24.5° N, 65.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Mekran Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)

• STRATIGRAPHIC RELATIONS: Overlies the lower Mekran Series, and in turn the Gaj beds. AGE: Pliocene, here assigned to the Early Pliocene based on its proximity to Miocene Mekran Series strata. STRATIGRAPHIC POSITION: Unknown position within unit.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified siliciclastic sediments

• ENVIRONMENT: Not stated in text, but presumably shallow shelf siliciclastic.
• SPECIFIC LITHOLOGY: Unknown, but presumably siliciclastic. LITHIFICATION: Poorly-lithified, based on figured specimens.

Size class: macrofossils

Collected by Vredenburg

Collection methods: surface (in situ),

• COLLECTORS: Multiple collectors including W. Blanford, Wynne, Hira Lal, Ram Singh, and Noetling (staff of Geological Survey of India) during the early 1900's. REPOSITORY: Geological Survey of India, with voucher specimens possibly at the BMNH.

Primary reference: E. Vredenburg. 1928. Description of Mollusca from the post-Eocene Tertiary formation of north-western India: Gastropoda (in part) and Lamellibranchiata. Memoirs of the Geological Survey of India 50(2):351-506 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77445: authorized by Austin Hendy, entered by Austin Hendy on 12.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia, and scaphopoda. NOMENCLATURE: Antiquated, but from an authoritative publication, with use of species and subgenus resolution assignments. Nomenclature can be updated through reference to Harzhauser and Swarko publications.
Bivalvia
 Pectinida - Pectinoidae
Pecten (Chlamys) alexandri Vredenburg 1928 scallop
 Ostreida - Ostreidae
"Ostrea cucullata" = Saccostrea cuccullata Born 1778 oyster
Ostrea parasitica Gmelin 1791 oyster
Ostrea pseudocrassissima Fuchs 1878 oyster
Ostrea pseudorissensis Vredenburg 1928 oyster